HV: change nuc7i7bnh ram start to 0x60000000

to support grub multiboot for nuc7i7bnh, we should put hv ram start
at a suitable address as SOS bzImage may need use 0x1000000

Tracked-On: #3214

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Victor Sun <victor.sun@intel.com>

Author: JasonChenCJ

hypervisor/arch/x86/configs/nuc7i7bnh.config

@@ -1,3 +1,4 @@
 # Generated by Kconfiglib (https://github.com/ulfalizer/Kconfiglib)
 CONFIG_BOARD="nuc7i7bnh"
 CONFIG_SERIAL_LEGACY=y
+CONFIG_HV_RAM_START=0x60000000